Emerson 639 Schematic

4/5/2010 2:23:26 AMDave Froehlich

Hello All,
Part of the internet didn't work for a while this evening. Finally, all is well. Does anyone have the schematic for an Emerson 639 TV set?

Thanks,

Dave

4/5/2010 12:58:23 PMDave Froehlich

Hello Again All,
It looks like this is covered in Sams set 87, Folder 6.
Maybe I already have this. I'll check.

Thanks,

Dave
:Hello All,
: Part of the internet didn't work for a while this evening. Finally, all is well. Does anyone have the schematic for an Emerson 639 TV set?
:
:Thanks,
:
:Dave
:

4/5/2010 4:55:07 PMPaul Knaack

:Hello Again All,
: It looks like this is covered in Sams set 87, Folder 6.
: Maybe I already have this. I'll check.
:
:Thanks,
:
:Dave
::Hello All,
:: Part of the internet didn't work for a while this evening. Finally, all is well. Does anyone have the schematic for an Emerson 639 TV set?
::
::Thanks,
::
::Dave
::
HI Dave, I have it, Let me know if you still need it. Paul

4/5/2010 8:51:40 PMDave Froehlich

Paul,
Yes, I need it. Isn't this set supposed to have a voltage doubler LV supply? I see only one diode. The other diode might be there but I don't see it. I also think that the fuse someone added is too small. It's a B+ fuse.
I see that this chassis is going to need a lot of looking over to get the circuitry right.

Thanks,

Dave
::Hello Again All,
:: It looks like this is covered in Sams set 87, Folder 6.
:: Maybe I already have this. I'll check.
::
::Thanks,
::
::Dave
:::Hello All,
::: Part of the internet didn't work for a while this evening. Finally, all is well. Does anyone have the schematic for an Emerson 639 TV set?
:::
:::Thanks,
:::
:::Dave
:::
:HI Dave, I have it, Let me know if you still need it. Paul
:

4/5/2010 10:38:13 PMPaul Knaack

:Photofact sent

4/5/2010 11:37:32 PMDave Froehlich

Paul,
I'm still waiting for the schematic. Thanks for the other pages.

Dave
:
::Photofact sent
:
:

4/6/2010 5:52:37 PMPaul Knaack

:Hi Dave, The file was too big in first email to you and got returned. Good luck with your project.

4/6/2010 11:16:09 PMDave Froehlich

Paul,
This doesn't make any sense. Why not send each page as a separate file and split it up into more e-mails? I don't see how it could be too big.

Thanks,

Dave
::Hi Dave, The file was too big in first email to you and got returned. Good luck with your project.
:

4/6/2010 7:44:28 PMPaul Knaack

:Paul,
: I'm still waiting for the schematic. Thanks for the other pages.
:
:Dave

::Hello Dave, sent out two emails pages 1-18 let me know if you now have all the pages. Paul

4/7/2010 12:46:51 AMDave Froehlich

Paul,
Where did you send the e-mails? I haven't received anymore of them.

Thanks,

Dave

::Paul,
:: I'm still waiting for the schematic. Thanks for the other pages.
::
::Dave
:
:
:::Hello Dave, sent out two emails pages 1-18 let me know if you now have all the pages. Paul
:

4/7/2010 4:08:56 PMPaul Knaack

:Paul,
: Where did you send the e-mails? I haven't received anymore of them.
:
:Thanks,
:
:Dave
:
:::Paul,
::: I'm still waiting for the schematic. Thanks for the other pages.
:::
:::Dave
::
::
::::Hello Dave, sent out two emails pages 1-18 let me know if you now have all the pages. Paul
::
:
Dave, I've been getting your email from your posting, I've sent it out again. Could it have gone into your spam email? If you like, email me your mailing address, and I will mail the folder to you. Paul

4/8/2010 12:36:07 AMDave Froehlich

Paul,
I have the folder. Everything is fine. Don't worry about it. I have no idea what's going on. However, I see that there's no current limiting resistor on the modern diode someone put in there. I measure 106 ohms from B+ to B- when the set is off and the fuse is out. I think I need to add another 100 ohm resistor, or maybe even as much as 500 ohms in series with the diode because the original diode was only capable of about 210 mA. Then the filter choke is rated at .099 Amps, 99 mA. So maybe it should be a lot lower current and a larger resistor like a 1K ohm resistor. So, what I still need to know is what current limiting resistor I need.

Thanks,

Dave

::Paul,
:: Where did you send the e-mails? I haven't received anymore of them.
::
::Thanks,
::
::Dave
::
::::Paul,
:::: I'm still waiting for the schematic. Thanks for the other pages.
::::
::::Dave
:::
:::
:::::Hello Dave, sent out two emails pages 1-18 let me know if you now have all the pages. Paul
:::
::
:Dave, I've been getting your email from your posting, I've sent it out again. Could it have gone into your spam email? If you like, email me your mailing address, and I will mail the folder to you. Paul
: